12202402 has 8 divisors (see below), whose sum is σ = 18649116. Its totient is φ = 5986032.

The previous prime is 12202381. The next prime is 12202423. The reversal of 12202402 is 20420221.

It is an interprime number because it is at equal distance from previous prime (12202381) and next prime (12202423).

It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 2461761 = 3121^2 + 1569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12202402² = 297797229139208, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57453 + ... + 57664.

Almost surely, 2^12202402 is an apocalyptic number.

12202402 is a deficient number, since it is larger than the sum of its proper divisors (6446714).

12202402 is a wasteful number, since it uses less digits than its factorization.

12202402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115172.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 12202402 is about 3493.1936676915. The cubic root of 12202402 is about 230.2228589748. Note that the first 3 decimals are identical.

Adding to 12202402 its reverse (20420221), we get a palindrome (32622623).

The spelling of 12202402 in words is "twelve million, two hundred two thousand, four hundred two".